<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
  <style>
    [v-cloak]{
      display: none;
    }
  </style>
</head>
<body>
<div id="app" v-cloak>
  {{message}}
</div>
<script src="../js/vue.js"></script>
<script>
  setTimeout(function (){
    const app = new Vue({
      el:'#app',
      data:{
        message:'123'
      }
    })
  },1000)

</script>
</body>
</html>